In speaking of its medical powers, Galen,[578] Oribasius,[579] and Paulus Ægineta,[580] describe the _Misy_ as escharotic, and astringent. In giving his list of eye-medicines, Galen places the _Misy_, _Sori_, etc., amongst those local applications which have a detergent effect.[581] Paulus Ægineta enters the _Misy_ in his list of “detergents of foul ulcers” of the eye (vol. iii. p. 548). Pliny, in describing the properties of Misy, states that “extenuat scabrities oculorum.”[582] Celsus in his work repeatedly alludes to the _Misy_ and its effects.[583] One of the collyria which he describes when treating of granular ophthalmia, contains the _Misy_ (see page 294). And he adds, that with the exception of those affections which require mild applications, this special collyrium is adapted to every kind of disorder of the eye (adversus omne genus oculorum valetudinis idoneum est). Galen (vol. xii. p. 736), Oribasius (lib. iv. p. 51), and Paulus Ægineta (vol. iii. 556), all give formulæ for the collyrium PANCHRESTOS of Erasistratus, which contained _Misy_ as its leading ingredient. “It has,” says Paulus, “wonderful efficacy in diseases of the eyes.” Oribasius enters it as a “compositio admirabilis.” The _Misy_, as a reputed “valedissimum medicamentum,” enters as an ingredient into several of the collyria described by Actuarius.[584] In a previous page I have already taken occasion to state that Marcellus Empiricus gives a formula for a collyrium under the name inscribed upon the stone of the collyrium DIAMISYOS; and he describes it as calculated “ad aspritudines oculorum tollendas et ad lachrymas substringendas.”